Ventilation system



Dec. 22 1925'- R. B. BRANDL VENTILATION SYSTEM Filed lla'rch 2. 1923 2 Sheets-Shut 1 Irroemsr Deg. 22 1925- R. B. BRANDL VENTILATION SYSTEM 6 Filed March 2. 1923 2 Sheets-Shea, 2

fwuzzvrae Pa er-860211 04.

lrraewzr Patented Dec. 2 2, 1925.

PATENT. OFFICE.

ROBERT B. BRANDL, OF ST. PAUL, MINNESOTA.

VENTILATION SYSTEM.

Application filed March 2, 1923. Serial No. 622,331.

T 0 all whom it may concern:

Be .it known that I, ROBERT B. BRANDL, a citizen of the United States, anda resident of St. Paul, in the county of Ramsey and State of Minnesota, have'inventedcertain new and useful Improvements in Ventilation Systems, of which the following is a specification.

One object of my invention is to provide a system of ventilation for barns and the like that will most advantageously circulate outside air into a barn and foul air out through roof ventilators.

Another object is to provide a system that will lift cold air and draw it through the distributing pipes.

Another object is to provide means for securing ventilation regardless of the direction of the wind.

Another object is to provide an improved automatic shut-off to be actuated by adverse winds.

\Vith theseand incidental objects in view the invention consists of certain novel features of construction and combination of parts, the essential elements of which are hereinafter described with reference to the drawings which accompany and form a part of this specification.

In the drawings, Figure l is a side elevation of a barn embodying my invention with portions of the side wall removed and with parts of the ventilating system shown in section; Figure 2 is an elevation partly broken away; Figure 3 is an enlarged sectional detail of one of the inlets shown in Figure 1; Figure 4 is a section taken on the line 44, Figure 3; Figure 5 is a longitudinal sectional view of my improved wind shut-01f; Figure 6 is a similar View of a modification of the same; and Figure 7 is a fragmentary section similar to that shown in Figure 1, but showing the style of automatic wind shut-off shown in Figure 6.

In my ventilating system I prefer to have intakes at each end of the barn, as shown at land 2, Figures 1 and 2. In each of the intakes is an automatic wind shut-off 3, which will be described in detail later. A riser pipe 4 connects the intake to the horizontal pipe 5 and the air is distributed along this pipe at vents 6, 7, 8, and 9, vents 7 and 8 being larger in area than vents 6 and 9, so as to distribute the air more evenly throughout the length of the barn.

The air is let out into the barn just under the floor 10 at the various points as'shown in Figure 1. I 7

Roof ventilators 11 are mounted on-up-- standing pipes 12 which open through the floor 10.

The circulation of the air from the ventspipes 12, passes out through the ventilators 11,"and in so doing starts a circulation of air out of the vents 6 to 9, inclusive, which is sufficient to lift the cold air from the exterior through the vertical height of the pipe 4. V

- To revent adverse winds from interfering with the operation of the system I have an intake at each end of the barn and in each of these intakes is an automatic wind shutoff, better shown in Figure 3.

The intake chamber 14 preferably has a screen 15 across the open face thereof and a rod 16 mounted in the side walls of the chamber has hinged thereon the damper 17.

The lip 18 which extends downwardly from the damper 17 has its ends 19 formed at right angles to the body of the lip so as to form corner pockets to catchwind that may strike the opening at an angle instead of directly blowing into the opening. The weight 20 is such as to normally hold the damper in the position shown in Figure 3, but it is apparent that when wind strikes in the pocket formed by the lip 18 this lip will be swung in a counter-clockwise direction until the end 21 impinges against the stop 22 when the intake will be completely or practically shut off. Braces 23 are provided to normally rest against the stop 24 to maintain the damper in the normal position shown in Figure 3.

It is apparent therefore that in case a strong wind is blowing from the right end of the system, as shown in Figure 1, the

damper of the automatic shut-ofl at that end will close and the system will operate through air drawn through the left hand intake. s

I also prefer to provide each of the roof ventilators with automatic shut-offs, and this may be done in either of the two ways.

As shown in Figure 5, I provide the ven-.

tilator with two shut-offs so that no matter which way the wind is blowing from there will always be one free opening which is away from the wind, and the opening which is toward the wind will be shut off by the action of the wind itself.

In the style shown in Figure 6, I mount the ventilator in the same manner as a weather vane so that it may be easily rotated by the wind striking the vane and this insures maintaining the end 26 which carries the automatic shut-off toward .the wind, and the end 27 which is open always away from the wind.

While ,I have described my invention and illustrated it in one particular design, I do not wish it to be understood that Ilimit myself to this construction, as it is evident the application of the invention may be varied inmany ways within the scope of the following claims:

1. In a ventilating system the combination with the walls, roof, and a ceiling of a barn of a longitudinally extending distributing pipe positioned near the center of the barn, intakes at each end of said barn and.

below said pipe, said pipe being'positioned below said ceiling, risers connecting said intakes to said pipe, a plurality of roof ventilators spaced along the length of said barn but at one side thereof, a plurality of vents in said distributing pipe spaced in intermediate relation with said roof ventilators.

2. In a ventilating system the combination with the walls, roof, and a ceiling of a barn of a plurality of roof ventilators connecting to the space below said ceiling, automatic shut-offs insaid ventilators, a distributing pipe extending longitudinally of said barn and below said ceiling, vents leading from said pipe to the space below said ceiling, an intake in each end of said barn below said pipe, but connected thereto, and an automatic shut-off ineach of said intakes.

ROBERT B. BRANDL. 

